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AUXILIARY FIRE ALARM AND EXTINGUIS H E R SYSTEM. No. 449, 29. PatentedApr. 7, 1891.

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Patented Apr. '7, 1891.

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E. L. SLOGUM. 4 AUXILIARY FIRE ALARMAND EXTINGUISHEE SYSTEM. No.449,829. Patented Apr. '7, 1891'.

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UNITED STATES PATENT OFFICE. P

EASON Ii. SLOCUM, OF PA\VTUCKET, RHODE ISLAND.

AUXILIARY FIRE ALARM AND EXTINGUISHER SYSTEM.

SPECIFICATION forming part of Letters Patent No. 449,829, dated April 7,1891. I

Application filed .TauuaryM, 1889. Serial No. 296,871. (No model.)

To (all whom it may concern:

Be it known that I, EASON L. SLocUM, a citizen of the United States,residing at Pawtucket, in the countyof Providence and State of RhodeIsland, have invented certain new and useful Improvements in AuxiliaryFire Alarm and Extinguisher Systems, of which the following is adescription, reference being had to the accompanying drawings, whichform a part of this specification.

The object of my invention is to provide a system of alarm-bells to bedistributed in the several departments of a building in which myauxiliary stations may be placed, which may be operated either bypressure upon the disk of the alarm-box or automatically; also, toprovide in addition a connecting system of water-pipes anddistributingheads, by means of which any department of the building canbe flooded with Water.

Figure 1 represents a front elevation of the internal mechanism of theauxiliary-alarmstation box. Fig. 2 represents a vertical section takenin the line 0c 00 of Fig. 1. Fig. 3 represents avertica-l section takenin theline y g of Fig. 1, showing an open electric circuit to thegeneral-alarm station. Fig. 4 represents a detail horizontal section,taken in the line .2 z of Fig. 2, showing the contactspring. Fig. 5represents a front elevation of the auxiliary fire-alarm box. Fig. 6represents a vertical section, as in Fig. 3, but showing thegeneral-alarm circuit as closed. Fig. 7 represents a plan view of thespring employed for holding the operating-disk. .Fig. 8 represents asectional view showing the several floors of a three-story building withmy improved auxiliary fire-alarm system com- 3 plete for each story, andalso showing the general-alarm station attached to a lamp-post andelectrically connected with the auxiliary stations located in thebuilding.

Referring to the drawings, the alarm-operating metal disk a rests in acaliper-formed spring I), which is firmly attached to the front of thestation-box. The slot b of this spring allows of sufficient play in itsarms to receive and firmly hold the disk, being constructed of cast-ironor hard bronze. Around the rim of the disk are placed the words Presshard. I prefer this form of spring to that described in my specificationfor Letters Patent, numbered 392,641, issued November 5, 1888, to whichLetters Patent and the specification thereto annexed I would refer for amore particular description of my auxiliary alarm-box.

c designates a curtain which covers the push-button, and is exposed toview when the disk is pressed in and falls to the bottom of the box. 011this curtain are printed the words Alarm sent in, my purpose being toremove 'all temptation after sending in an alarm to tamper with the box.The action on the push-button by the disk, on account ward and itssudden release from the diskholding spring, is very positive and removesall liability of failure to send in an alarm.

In Figs. 1, 2, and 3, B designates a metal arm secured in a slot of thepush-button S by the set-screw b 0 designates an electricallyconncctedlever, termed the general contactlever, which is pivoted to theinsulated screw a. The lever chas aright-angled arm, Fig. 2, extendingfrom the fulcrum and pivoted to the connecting-bar c by means of the tothe free end of the local contact-lever D, the said lever being pivotedto the insulated post cl, which is secured to the back of the box. 6designates a local contact-clamp secured to the box by the insulatedpost 6. From the posts d and e electric connection is made with thebattery G, which serves to 0perate the gongs g g, set in the variousdepartments and also the gong g at the outside of thelbuilding. Thebattery Gis also connected with the various auxiliary stations A in theseveral departments. When the disk to is pressed inward, sending thealarm to the general station A, as explained in my Letters Patent beforereferred to, by the same movement the arm B is forced against the sideof the opening 0 in the long arm of the lever c. This lever forms apassing electric contact with the projecting bend b of the spring rwhich when in engagement with the lever is forced into contact with theelectrically connected and insulated post 19 which forms a part of theelectric circuit T to the generalalarm station A, and also serves tocarry the free end of the lever D into the clamp e. The lever D isconnected with the battery G of the force necessary to send the disk inscrew 0 and the connectin -bar c is 'ointed by means of a wire passinginto the insulated post d. Now as soonas the contact is formed betweenthe lever D and the clamp e, which,

as described, is connected by a wire 8 with 5 the gongs g g, the gongsin the various departments ring a continuous alarm, since the contactcan only be broken by opening the alarm-box and replacing the levers intheir original positions.

It designates an intermediate lever which loosely enters a slot in theconnecting-bar o the said lever being pivoted upon the stud f, which mayeither be secured to the box or to the wall of the apartment.

7&3 designates a connecting bar or chain extending downward from theouter end of the lever 7L to the end of the lever h*, which is pivotedto the stud 1). The lever h is provided with a detent-pin p, whichengages with a tooth s on the periphery of the wheel K. Upon this wheelis wound a chain b having a weight L attached to the end thereof. *henthe detent-pin p is raised from the tooth s in the wheel K, the weight Lwill fall, causing the wheel to revolve, and this revolution opens avalve M in the elbow s of the pipe P, this valve forming a cut-offbetween the main pipe P and the feed-pipe P.

The main pipe P may be connected with 0 any proper water-s11 pply, andthe water from the same will be distributed through the severaldepartments by means of the distributing or feed pipe P, connected withthe main pipe P, as described. At regular intervals in the feed-pipe P,I'would place distributing heads or sprinklers z: n.

It will readily appear from my description that by a single pressureupon the disk a of either of the auxiliary stations A A A an 40 alarmwill be sent into the general station A,

and thatby the same movement a continuous alarm will be given to theoccupants of the various departments connected by my {LllXll' iarystations.

I have also incorporated into my system an automatic alarm and anautomatic extinguisher, which I explain as follows: Immediately beneaththe ceilings of the several departments in which my auxiliary stationsare placed, or in any desired location, I would suspend by the pulleys 1a cable R, con structedin adjoining alternate sections of aneasily-fusible metal wire chain c and a combustible cord c preferably ofcotton. The

cable R is attached to the weighted lever r,

the said lever being pivoted to the stud 0", which is secured to thewall and connected to a bar or chain 0", which is attached to the leverh. I employ this construction of alter- 6o nate sections of wire chainand cord in order that in any room in which the fire may be, if the heatshould fail to reach and melt the fusible chain, yet the flame, bycontact with the cord, will cause the separation of the cable.

As soon as the cable for any reason becomes disunited the weight Lcarries down with itself the end of the lever 7', thus lifting the chain0', which in turn raises the detent-lcverfrom the wheel K, and thusopens the water-valve from the main to the distributing pipes. Bythesame movementthe outer end of the lever It will be raised and the innerend within the station-box depressed, and, as before described, an alarmwill be sent to the general station A, and a contact will be madebetween the electrically-connected lever D and the insulated clamp e,which is connected with the gongs g g, thus automatically ringing acontinuous alarm and distributing the water automatically at the sametime.

There is one feature of my invention to which I would directattention,viz: it will be observed that when the cable is for any reasondisunited, and by that means the long arm of the lever 0 carriedforward, a proper contact will be made with the electrically connectedand insulated post 19 by means of which an alarm will be sent into themain or central station automatically, and at the same time a localalarm will be rung continuously at g on the outside of the building,indicating the building on fire, thus doing away with the necessity ofsending a messenger to the alarm-box or general station A to direct thefiremen to the proper building, and by reason of the slot 0, whichallows a forward movement of the lever 0 independently of the arm 13 ofthe push-button, a subsequent alarm can be sent into the general stationby forcing the dish a inward against the pushbutton S, so as to form acontact between the insulated spring a and the insulated plate 0. thusagain closing the circuit T to the main station.

I claim as my invention 1. The combination of the metal disk, thecaliper-formed spring for holding the same, and the electricallyconnected and adjusted p ush-button, substantially as and for thepurpose described.

.Z. The combination of the metal disk, a spring for holding the same,the electrically connected and adjusted push-button, and a curtainsecured to the box and covering said push-button, substantially as andfor the purpose described.

3. The combination, with the metal disk, a spring for holding the same,the electrically connected and adjusted push-button provided with theprojecting arm, and the general contact-lever loosely engaged with thearm of the push-button, of the local contact-lever connected withthegeneral contact-lever, and the local contact-clamp electricallyconnected with the gongs, substantially as described.

at. In an auxiliary fire alarm and extinguisher, the combination, withthe metal disk, at springforholdin g the same, and the electricallyconnected and adjustedpush-button provided with the projecting arm, ofthe general contact-lever loosely engaged with the projecting arm, theconnecting-bar jointed to the general contact-lever, the intermediatelever jointed to the connecting-bar, the detent-lever connected with theintermediate lever, the weight ed wheel engaging with the detent-leverand connected with a valve between the main pipe and thedistributing-pipe, and the distributing-heads for the water, wherebyupon raising the detent-lever the water will be sprinkled from the headsand an alarm will be sounded at the general station and a second alarmcan be sent to the said station, substantially as described.

5. In an auxiliary fire alarm and eX'f/llk guisher, the combination,with a cable consisting of alternate sections of combustible and fusiblematerial, of a weighted lever attached to the said cable, thedetent-lever connected with the weighted lever, and a weighted wheeladapted to engage with the detent-lever and connected with the valvebetween the main and distributing pipes, whereby when the said cablebecomes disunited the Valve will be opened automatically, substantiallyas described.

6. 111 an auxiliary fire alarm and extinguisher, the combination, with acable consisting of alternate sections of combustible and fusiblematerial, of a weighted lever attached to the cable and connected withthe intermediate lever, which extends into the interior of thestation-box and is connected with both the general contact-lever and thelocal contact-lever of the station-box, whereby when the cable becomesdisunited the dropping of the weighted lever will cause the raising ofthe intermediate lever, the electric engagemeut of thevlocalcontact-lever to ring the gongs, and the electric engagement of thegeneral contact-lever to send an alarm to the general station and alsopermitting the sending in of a second alarm to the general station,substantially as described.

EASON L. SLOCUM In presence of EDWARD W. BLODGETT, W. W. BL'ODGETT.

